12997328

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{19813}}^1$

素因数の和:19862

約数の個数: 20

約数和(自身を含む): 25797828

約数和(自身を除く): 12800500

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 19813, 39626, 79252, 158504, 317008, 812333, 1624666, 3249332, 6498664, 12997328]

約数ペア:

[(1, 12997328), (2, 6498664), (4, 3249332), (8, 1624666), (16, 812333), (41, 317008), (82, 158504), (164, 79252), (328, 39626), (656, 19813)]